<template>
    <div>
        <!-- 面包屑区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片区域 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- 商品数据table区域 -->
            <el-table :data="goodsList" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="185px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini"
                            @click="removeGoods(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[10, 20, 50, 100]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total" background>
            </el-pagination>
        </el-card>
    </div>
</template>
<script>
export default {
    data() {
        return {
            // 获取商品列表的参数对象
            queryInfo: {
                // 查询参数
                query: '',
                // 当前的页数
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 10
            },
            // 商品列表
            goodsList: [],
            // 总数据条数
            total: 0

        }
    },
    created() {
        // 根据分页获取对应的商品列表
        this.getGoodsList()
    },
    methods: {
        async getGoodsList() {
            const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
            if (res.meta.status !== 200) return this.$message.error('获取商品列表失败！')
            console.log(res.data);
            this.total = res.data.total
            this.goodsList = res.data.goods
        },
        // 监听 pagesize 改变的事件
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        // 监听 页码值 改变的事件
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        // 删除商品
        async removeGoods(goods_id) {
            const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            if(confirmResult!=='confirm') return this.$message.info('已取消删除')
            const { data:res} = await this.$http.delete(`goods/${goods_id}`)
            if (res.meta.status!==200) return this.$message('删除商品失败！')
            this.$message.success('删除商品成功！')
            this.getGoodsList()
        },
        // 路由跳转到添加商品页面
        goAddPage() { 
            this.$router.push('/goods/add')
        }
    }
}
</script>
<style>

</style>